55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
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//! named accounts for synthesized data accounts for bank state, etc.
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//!
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//! this account carries the Bank's most recent blockhashes for some N parents
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//!
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use crate::account::Account;
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use crate::hash::Hash;
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use crate::pubkey::Pubkey;
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/// "Sysca11SlotHashes11111111111111111111111111"
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/// slot hashes account pubkey
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const SYSCALL_SLOT_HASHES_ID: [u8; 32] = [
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6, 167, 211, 138, 69, 219, 186, 157, 48, 170, 46, 66, 2, 146, 193, 59, 39, 59, 245, 188, 30,
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60, 130, 78, 86, 27, 113, 191, 208, 0, 0, 0,
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];
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pub fn id() -> Pubkey {
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Pubkey::new(&SYSCALL_SLOT_HASHES_ID)
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}
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use crate::account_utils::State;
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use std::ops::{Deref, DerefMut};
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#[derive(Serialize, Deserialize)]
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pub struct SlotHashes(Vec<(u64, Hash)>);
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impl SlotHashes {
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pub fn from(account: &Account) -> Option<Self> {
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account.state().ok()
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}
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}
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impl Deref for SlotHashes {
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type Target = Vec<(u64, Hash)>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl DerefMut for SlotHashes {
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fn deref_mut(&mut self) -> &mut Self::Target {
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&mut self.0
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_syscall_ids() {
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let ids = [("Sysca11S1otHashes11111111111111111111111111", id())];
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// to get the bytes above:
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// ids.iter().for_each(|(name, _)| {
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// dbg!((name, bs58::decode(name).into_vec().unwrap()));
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// });
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assert!(ids.iter().all(|(name, id)| *name == id.to_string()));
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}
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}
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